The Pentagon's internal watchdog has evidence that Defense Secretary Pete Hegseth used details from a classified email when he shared information about US strikes on Yemen on Signal earlier this year, ...

Former National Security Advisor Mike Waltz faced scrutiny over a Signal chat incident during his U.N. ambassador hearing before the Senate Foreign Relations Committee.

The reporting that the information Hegseth is accused of sharing on the chat came from a file marked “SECRET/NOFORN” is at ...

The Pentagon’s inspector general has received evidence that the military plans shared from Secretary of Defense Pete ...

While the fact that information is classified does not automatically place it outside the scope of the government's discovery obligations, it does mean that the information will be subject to a ...

Deciding what information is classified is subjective. Some things clearly need to be kept secret, like the identity of covert operatives or battle plans. Other issues are not as obvious.

A federal judge is taking extra steps to keep national‑security secrets under lock and key in the case of a Huntsville Missile Defense Agency employee accused of taking classified material home.

Government officials who mishandle classified information can face administrative penalties, depending on the level of negligence. Typically, there has to be some sign of intentional wrongdoing ...

The Classified Information Procedures Act aims to balance the defendant's constitutional right to a fair trial with the government's interest in protecting its secrets.

“Any individual who handles classified material or documents is made aware of the safeguards, responsibility, and importance of protecting highly sensitive information, whether it’s high ...

Once an originating agency determines that information needs to be classified, they must then determine at what level. Under the classification system, there are generally three levels.

The controversy over Hillary Clinton's use of a private e-mail account while she was secretary of state has centered on whether she used it to send or receive classified messages. This focus ...